From 80fa14ec52525efda22542ef50623f0494a49d98 Mon Sep 17 00:00:00 2001 From: pi5fnqcfr <824659727@qq.com> Date: Tue, 4 Jun 2024 22:00:53 +0800 Subject: [PATCH] ADD file via upload --- MangerBook.cpp | 396 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 396 insertions(+) create mode 100644 MangerBook.cpp diff --git a/MangerBook.cpp b/MangerBook.cpp new file mode 100644 index 0000000..f56b6cd --- /dev/null +++ b/MangerBook.cpp @@ -0,0 +1,396 @@ +#include "MangerBook.h" +#include "Book.h" +#include +#include +#include +#include + +MangerBook::MangerBook()//构造函数 +{ + this->Book_Array = new vector; + this->Init_Book();//初始化 +} + +void MangerBook::Init_Book() +{ + /* + ifstream fi; + fi.open("D:/c++一些代码/library class版/library class版/图书信息.txt",ios::in); + if (!fi.is_open()) { + std::cerr << "无法打开文件" << std::endl; + return; + } + string _name; + int _year,_month,_day; + int _isleadbook; + int _times; + while(fi>>_name&&fi>>_year&&fi>>_month && fi>>_day&&fi>>_isleadbook&&fi>>_times) + { + Date _data(_year,_month,_day); + Book *_pstu = NULL; + if(_isleadbook==0) + _pstu = new Book(_name,_data,true,_times); + else + _pstu = new Book(_name,_data,false,_times); + this->Book_Array->push_back(_pstu); + } + fi.close(); + */ + //初始六本书，本来想用文件输入，但是无法输出,最后也没有解决，上面注释是输入失败的代码 + Book* _pstu1 = NULL; + Date _data1(2024, 3, 4); + _pstu1 = new Book("数据结构基础", _data1, false, 117); + this->Book_Array->push_back(_pstu1); + + Book* _pstu2 = NULL; + Date _data2(2023, 10, 17); + _pstu2 = new Book("红楼梦", _data2, true, 11); + this->Book_Array->push_back(_pstu2); + + Book* _pstu3 = NULL; + Date _data3(2024, 5, 16); + _pstu3 = new Book("计算机网络", _data3, false, 98); + this->Book_Array->push_back(_pstu3); + + Book* _pstu4 = NULL; + Date _data4(2023, 10, 4); + _pstu4 = new Book("离散数学", _data1, true, 11); + this->Book_Array->push_back(_pstu4); + + Book* _pstu5 = NULL; + Date _data5(2023, 2, 16); + _pstu5 = new Book("操作系统", _data5, false, 110); + this->Book_Array->push_back(_pstu5); + + Book* _pstu6 = NULL; + Date _data6(2023, 10, 1); + _pstu6 = new Book("工科数学分析", _data6, false, 111); + this->Book_Array->push_back(_pstu6); +} +void MangerBook::ShowMenu() +{ + cout << "-----------------------------------------------------------" << endl; + cout << "-------------------某某大学图书管理系统---------------------" << endl; + cout << "----------------------0、退出系统--------------------------" << endl; + cout << "---------------------1、借出排行榜-------------------------" << endl; + cout << "---------------------2、新增图书---------------------------" << endl; + cout << "---------------------3、查看图书---------------------------" << endl; + cout << "---------------------4、删除图书---------------------------" << endl; + cout << "---------------------5、借出图书---------------------------" << endl; + cout << "---------------------6、归还图书---------------------------" << endl; + cout << "---------------------7、显示书库---------------------------" << endl; + cout << "-----------------------------------------------------------" << endl; + cout << endl; +} + +void MangerBook::Exit_Sys()//退出系统函数 +{ + cout << "谢谢使用" << endl; + exit(-1); +} + + +bool cmp(Book* book1, Book* book2)//设置排列顺序从大到小 +{ + return book1->getTimes() > book2->getTimes(); +} + +void MangerBook::LoanRanking()//借出排行，使用STL，从大到小排列 +{ + sort(Book_Array->begin(), Book_Array->end(), cmp); + for (int i = 0; i < (int)Book_Array->size(); i++) { + this->Book_Array->at(i)->ShowInfo(); + } + system("pause"); + system("cls"); +} + +void MangerBook::ShowBook()//显示在库图书信息 +{ + for (int i = 0; i < (int)Book_Array->size(); i++) { + this->Book_Array->at(i)->ShowInfo(); + } + system("pause"); + system("cls"); +} + +void MangerBook::AddBook()//添加书籍 +{ + int i = 1;//记录添加 + while (true) + { + char flag; + string _name; + cout << "请输入添加第" << i << "本书的名字" << endl; + cin >> _name; + Book* _pstu = NULL; + Date _data(0, 0, 0); + _pstu = new Book(_name, _data, false, 0);//新入库图书默认借出次数为零 + this->Book_Array->push_back(_pstu); + i++; + cout << "是否继续录入信息？" << endl; + cout << "Y/y继续录入，N/n结束录入" << endl; + while (true) { //非法检测 + cin >> flag; + if (flag == 'Y' || flag == 'y' || flag == 'N' || flag == 'n') + { + break; + } + else { + cout << "输入的指令非法！请重新输入！" << endl; + } + } + if (flag == 'Y' || flag == 'y') { + continue; + } + else { + break; + } + } + cout << "成功录入了" << i - 1 << "本书信息！" << endl; + system("pause"); + system("cls"); +} + +void MangerBook::SearchBook() +{ + cout << "请输入待查询书籍名称" << endl; + string searchname; + cin >> searchname; + int index; + index = IndexBook(searchname);//寻找在数组中位置 + if (index != -1) { + this->Book_Array->at(index)->ShowInfo(); + } + system("pause"); + system("cls"); +} + +int MangerBook::IndexBook(string name)//索引函数 +{ + int ret = -1; + for (int i = 0; i < (int)Book_Array->size(); i++) { + if (this->Book_Array->at(i)->getName() == name) { + ret = i; + break; + } + } + return ret; +} + +void MangerBook::SelectBook() +{ + cout << "请输入待删除书籍名称" << endl; + string searchname; + cin >> searchname; + int index; + index = IndexBook(searchname); + if (index != -1) { + if (this->Book_Array->at(index)->getStatue() == false) {//书籍不在库则无法删除 + this->Book_Array->erase(this->Book_Array->begin() + index); + cout << "删除成功！" << endl; + } + else { + cout << "书籍不在库！，删除失败！" << endl; + } + } + else { + cout << "书籍信息不存在！，删除失败！" << endl; + } + system("pause"); + system("cls"); +} + +void MangerBook::LoanBook()//借出 +{ + cout << "请输入书籍名称" << endl; + string searchname; + cin >> searchname; + int c_year, c_month, c_day; + int index; + index = IndexBook(searchname); + if (index != -1) { + if (this->Book_Array->at(index)->getStatue() == false) {//书籍不在库则无法借出 + cout << "请输入借出日期（年 月 日）" << endl; + cin >> c_year >> c_month >> c_day; + Date c_data(c_year, c_month, c_day); + + // 检查还书日期的合法性 + if (!LegalDate(c_data)) { + cout << "日期非法，请重新输入！" << endl; + // 添加循环以重复要求有效日期 + while (true) { + cout << "请输入借出日期（年 月 日）" << endl; + cin >> c_year >> c_month >> c_day; + c_data = Date(c_year, c_month, c_day); + if (LegalDate(c_data)) { + break; + } + else { + cout << "日期非法，请重新输入！" << endl; + } + } + } + + Book* _pstu1 = NULL; + Date _data1(c_year, c_month, c_day); + _pstu1 = new Book(searchname, _data1, true, this->Book_Array->at(index)->getTimes() + 1); + int insertIndex = index; // 要插入的位置（可以根据需求修改） + if (insertIndex >= 0 && insertIndex < (int)this->Book_Array->size()) { + delete this->Book_Array->at(insertIndex); // 删除原来的对象，避免内存泄漏 + this->Book_Array->at(insertIndex) = _pstu1; // 插入新的 Book 对象 + } + else { + cout << "插入位置无效！" << endl; + } + cout << "借出成功，请妥善保管" << endl; + } + else { + cout << "书籍不在库！，借出失败！" << endl; + } + } + else { + cout << "书籍信息不存在！，借出失败！" << endl; + } + system("pause"); + system("cls"); +} + +bool isLeapyear(int year)//判断是否是闰年 +{ + if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)) + return true; + return false; +} + +bool MangerBook::LegalDate(const Date& date) //检测日期合法性 +{ + int y = date.getYear(); + int m = date.getMonth(); + int d = date.getDay(); + bool ret = true; + if (m > 12 || m < 1) + ret = false; + else if (((m == 1) || (m == 3) || (m == 5) || (m == 7) || (m == 8) || (m == 10) || (m == 12)) && d > 31) + ret = false; + else if (((m == 4) || (m == 6) || (m == 9) || (m == 11)) && d > 30) + ret = false; + if (isLeapyear(y) && m == 2 && d > 29) + ret = false; + else if (!isLeapyear(y) && m == 2 && d > 28) + ret = false; + return ret; +} + +int diffDay(int year1, int year2, int month2, int day2)//计算相差多少年转化为天，即总天数差 +{ + int ans = 0; + if (year1 == year2) + return 0; + else if (year1 > year2) + return -1e6; + int cntyear = abs(year2 - year1); + for (int i = 0; i < cntyear; i++) { + ans += 365; + } + for (int i = min(year1, year2); i <= max(year1, year2); i++) { + if (isLeapyear(i)) { + ans++; + } + } + if (isLeapyear(year2) && ((month2 < 2) || (month2 == 2 && day2 < 29))) + ans--; + return ans; +} + +int Daytoend(int y, int m, int d) //计算到年底的天数 +{ + int tm = 0, tEY = 0; + int month[12] = { 31,28,31,30,31,30,31,31,30,31,30,31 }; + if (isLeapyear(y)) + month[1] = 29; + for (m -= 1; m <= 11; m++) + tm += month[m]; + tEY = tm - d; + return tEY; +} + +int MangerBook::CntDay(const Date& date1, const Date& date2)//计算相差多少天 +{ + int cntday1 = diffDay(date1.getYear(), date2.getYear(), date2.getMonth(), date2.getDay()); + int cnt_day_end1 = Daytoend(date1.getYear(), date1.getMonth(), date1.getDay()); + int cnt_day_end2 = Daytoend(date2.getYear(), date2.getMonth(), date2.getDay()); + int CalculateDateDifference = cntday1 + cnt_day_end1 - cnt_day_end2; + //用总天数差加上两个日期到当年年底天数之差即为结果 + return CalculateDateDifference; +} + +void MangerBook::ReturnkBook()//归还书籍 +{ + cout << "请输入归还书籍名称" << endl; + string searchname; + cin >> searchname; + int r_year; + int r_month; + int r_day; + int index; + index = IndexBook(searchname); + if (index != -1) { + if (this->Book_Array->at(index)->getStatue() == true) { + cout << "请输入归还日期（年 月 日）" << endl; + cin >> r_year >> r_month >> r_day; + Date r_data(r_year, r_month, r_day); + + // 检查还书日期的合法性 + if (!LegalDate(r_data)) { + cout << "日期非法，请重新输入！" << endl; + // 添加循环以重复要求有效日期 + while (true) { + cout << "请输入归还日期（年 月 日）" << endl; + cin >> r_year >> r_month >> r_day; + r_data = Date(r_year, r_month, r_day); + if (LegalDate(r_data)) { + break; + } + else { + cout << "日期非法，请重新输入！" << endl; + } + } + } + + // 计算租借天数 + int chargeDay = CntDay(this->Book_Array->at(index)->getDate(), r_data); + while (chargeDay < 0) { + cout << "日期非法，请重新输入！" << endl; + cout << "请输入归还日期（年 月 日）" << endl; + cin >> r_year >> r_month >> r_day; + r_data = Date(r_year, r_month, r_day); + chargeDay = CntDay(this->Book_Array->at(index)->getDate(), r_data); + } + // + this->Book_Array->at(index)->outTurnin(); + double charge = chargeDay * 0.1; + this->Book_Array->at(index)->Show_LoanTime(); + cout << "借出" << chargeDay << "天，日租1角" << "共需支付" << charge << "元" << endl; + cout << "归还成功，谢谢使用！" << endl; + } + else { + cout << "已归还，请勿重复归还！" << endl; + } + } + else { + cout << "书籍信息不存在！，归还失败！" << endl; + } + system("pause"); + system("cls"); +} + +MangerBook::~MangerBook()//析构函数 +{ + //dtor + if (this->Book_Array) { + this->Book_Array->clear(); + delete[] this->Book_Array; + this->Book_Array = NULL;//删除后，让对象指针指向空 + } +} \ No newline at end of file